Publications by authors named "Yogev Y"

Objective: The rising rates of cesarean delivery (CD), which are a leading cause of intra-abdominal adhesions, represent a major concern for maternal health. We aimed to describe early maternal complications following CD in women with severe intra-abdominal adhesions.

Methods: A prospective observational study was conducted at a university-affiliated tertiary medical center (January 2021 and March 2023) in Israel.

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Objective: To compare adverse neonatal outcomes between trial of vaginal delivery and upfront cesarean delivery for singleton infants born at 24 to 28 weeks of gestation.

Methods: This is a retrospective cohort study that was conducted at a university-affiliated tertiary medical center between 2011 and 2022, involving singleton pregnancies delivered between 24 and 27 weeks of gestation. Participants were divided into two groups based on their intended mode of delivery: a trial of labor (TOL) group and an upfront cesarean delivery (CD) group.

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Article Synopsis
  • This study examined the outcomes of 185 pregnant women who had appendectomies, comparing them to 555 who did not undergo surgery, focusing on clinical, obstetrical, and neonatal results from 2005 to 2022.
  • The majority of the appendectomies were laparoscopic, with 76.2% of cases showing an inflamed appendix; however, preterm delivery was significantly higher in the appendectomy group (11.9%) compared to the control group (5.4%).
  • The analysis indicated that having an appendectomy, especially if it was a negative appendectomy, was a significant risk factor for preterm birth, highlighting the need for careful
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Objective: The increasing rate of cesarean sections (CSs) raises concerns over severe intra-abdominal adhesions, which are associated with numerous complications. We aimed to identify risk factors and predictive tools for severe adhesions.

Design: A prospective study was conducted.

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  • The study aimed to identify risk factors and create a predictive model for cesarean deliveries during labor in women with obesity.
  • Researchers analyzed data from 5,663 women with a BMI of 30 or higher, finding that 7.5% ended up having a cesarean delivery.
  • Key risk factors included age over 35, higher pre-gestational BMI, nulliparity, and certain medical interventions, with the predictive model showing 85% sensitivity and 70% specificity for predicting cesarean needs.
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Introduction: To evaluate the effectiveness of paracetamol and ibuprofen as non-opioid treatments for postpartum pain control after vaginal delivery.

Materials And Methods: This randomized controlled study at a university-affiliated medical center involved parturient who received blindly oral tablets of either 1000 mg of paracetamol or 400 mg of ibuprofen, post-vaginal birth. Pain levels were assessed using a numeric rating scale (NRS) at four time points: before treatment, and 1, 4, and 6 h post-treatment (T0, T1, T4, and T6, respectively).

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Objective: To identify the key risk factors contributing to re-hospitalization after term cesarean delivery (CD).

Methods: This retrospective cohort study included women who underwent CD at term at a university-affiliated tertiary medical center (January 2021 to March 2023). The primary outcome was risk factors for re-hospitalization within 30 days post-discharge.

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Background: Chromosomal microarray analysis (CMA) has been central to prenatal genetic diagnosis, detecting copy number variants with a ∼1% yield in low-risk cases. Next-generation sequencing (NGS), including exome sequencing (ES), enhances diagnostic capabilities with higher yields (8.5-10%) but at greater cost and complexity.

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Pathogenic variants underlying Mendelian diseases often disrupt the normal physiology of a few tissues and organs. However, variant effect prediction tools that aim to identify pathogenic variants are typically oblivious to tissue contexts. Here we report a machine-learning framework, denoted "Tissue Risk Assessment of Causality by Expression for variants" (TRACEvar, https://netbio.

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Objective: The aim of the present study was to determine the risk factors for patients with pre-eclampsia (PE) with severe features to develop hemolysis, elevated liver enzymes and low platelets (HELLP) syndrome and to design a prediction score model that incorporates these risk factors.

Methods: A retrospective cohort study was conducted at a tertiary university-affiliated medical center between 2011 and 2019. The study population comprised patients diagnosed with PE with severe features, divided into two groups: those with HELLP syndrome (study group) and those without (control group).

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Objective: To determine risk factors and to develop a risk prediction score for intrapartum cesarean delivery (CD) in women over 40 years old.

Study Design: A retrospective cohort study, in a single university-affiliated tertiary medical center. All women aged 40 years or more who planned a trial of labor between 2012 and 2022.

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Article Synopsis
  • Developmental dysplasia of the hip (DDH) is a common congenital musculoskeletal disorder in newborns, with genetic factors, but its molecular mechanisms remain unclear.
  • Research identified a specific genetic variant in a Bedouin family that could lead to DDH through pathways related to bone formation, specifically focusing on the TRIM33 gene.
  • The study's results indicate that this genetic variant impacts the expression of key genes in the BMP pathway, providing insight into how DDH can develop genetically.
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  • The study aimed to compare the risk of obstetric anal sphincter injury (OASI) in women having their first vaginal birth after a cesarean (secundiparous) with first-time vaginal delivery (primiparous) women.
  • It analyzed data from 85,428 women over a decade, finding similar rates of OASI in both groups (0.94% for secundiparous vs. 0.81% for primiparous), with no significant statistical association between undergoing a vaginal birth after cesarean (VBAC) and OASI.
  • The results indicated that women who had a VBAC do not face a higher risk of OASI compared to those experiencing their first vaginal
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Purpose: To assess the prevalence, microbial profile, and clinical risk factors of maternal bacteremia associated with intrapartum fever (IPF).

Methods: A retrospective cohort study, in a single tertiary university-affiliated medical center between 2012 and 2018. Demographic and labor characteristics of women, who delivered at term (37+0/7-41+6/7) and developed bacteremia following IPF were compared to a control group of women with IPF but without bacteremia.

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Background: Relaparotomy following a cesarean delivery (CD) is an infrequent complication, with inconsistency regarding risk factors and indications for its occurrence. We therefore aimed to determine risk factors and indications for a relaparotomy following a CD at a single large tertiary center.

Methods: A retrospective case-control single-center study (2013-2023).

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With the increasing importance of genomic data in understanding genetic diseases, there is an essential need for efficient and user-friendly tools that simplify variant analysis. Although multiple tools exist, many present barriers such as steep learning curves, limited reference genome compatibility, or costs. We developed VARista, a free web-based tool, to address these challenges and provide a streamlined solution for researchers, particularly those focusing on rare monogenic diseases.

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Ehlers-Danlos syndromes (EDS) are a group of connective tissue disorders caused by mutations in collagen and collagen-interacting genes. We delineate a novel form of EDS with vascular features through clinical and histopathological phenotyping and genetic studies of a three-generation pedigree, displaying an apparently autosomal dominant phenotype of joint hypermobility and frequent joint dislocations, atrophic scarring, prolonged bleeding time and age-related aortic dilatation and rupture. Coagulation tests as well as platelet counts and function were normal.

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Kaposi sarcoma (KS), caused by Herpesvirus-8 (HHV-8; KSHV), shows sporadic, endemic, and epidemic forms. While familial clustering of KS was previously recorded, the molecular basis of hereditary predilection to KS remains largely unknown. We demonstrate through genetic studies that a dominantly inherited missense mutation in BPTF segregates with a phenotype of classical KS in multiple immunocompetent individuals in two families.

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The biallelic variants of the POP1 gene are associated with the anauxetic dysplasia (AAD OMIM 607095), a rare skeletal dysplasia, characterized by prenatal rhizomelic shortening of limbs and generalized joint hypermobility. Affected individuals usually have normal neurodevelopmental milestones. Here we present three cases from the same family with likely pathogenic homozygous POP1 variant and a completely novel phenotype: a girl with global developmental delay and autism, microcephaly, peculiar dysmorphic features and multiple congenital anomalies.

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Background: Sex-specific predilection in neurological diseases caused by mutations in autosomal genes is a phenomenon whose molecular basis is poorly understood. We studied females of consanguineous Bedouin kindred presenting with severe global developmental delay and epilepsy.

Methods: Linkage analysis, whole exome sequencing, generation of CRISPR/cas9 knock-in mice, mouse behaviour and molecular studies RESULTS: Linkage analysis and whole exome sequencing studies of the affected kindred delineated a ~5 Mbp disease-associated chromosome 2q35 locus, containing a novel homozygous frameshift truncating mutation in , in line with recent studies depicting similar putative loss-of-function human phenotypes with female preponderance.

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Article Synopsis
  • The study examines the link between grand multiparity (having five or more previous deliveries) and the risk of postpartum complications, specifically blood transfusions following childbirth.
  • A total of 87,343 deliveries were analyzed; grand multiparous women accounted for only 1.7% of the sample, with only 1.8% of all women needing red blood cell transfusions.
  • The results suggest that, after adjusting for various risk factors, grand multiparity is actually associated with a lower risk of needing blood transfusions postpartum, indicating it may be a protective factor rather than a risk factor.
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This retrospective cohort study aimed to explore the association between advanced maternal age and the clinical manifestations as well as laboratory parameters of preeclampsia with severe features. This study included 452 patients who were diagnosed with preeclampsia with severe features. The clinical and laboratorial characteristics of patients with preeclampsia with severe features aged ≥40 years old (study group) were compared to those of patients aged <40 years old (control group).

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Objective: To determine perinatal outcomes following uterine rupture during a trial of labor after one previous cesarean delivery (CD) at term.

Methods: A retrospective single-center study examining perinatal outcomes in women with term singleton pregnancies with one prior CD, who underwent a trial of labor after cesarean (TOLAC) and were diagnosed with uterine rupture, between 2011 and 2022. The primary outcome was a composite maternal outcome, and the secondary outcome was a composite neonatal outcome.

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Article Synopsis
  • Researchers found a variant in an intron of the NHEJ1 gene linked to eye development disorders like microphthalmia, which has no coding-region mutations.
  • They conducted a study involving Jewish Iranian families and identified a critical region on chromosome 2q35 that contains this variant, which is connected to the Indian hedgehog (Ihh) gene, important for eye development.
  • Experimental studies in mice and chickens confirmed that this intronic variant disrupts the enhancer activity of the Ihh gene, leading to the identified eye conditions and illustrating how intronic variants can influence nearby gene expression.
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Objective: We aimed to determine risk factors for prolonged surgery time of cesarean delivery (CD).

Methods: We conducted a retrospective cohort study in a single tertiary university-affiliated medical center (2011-2022). The study group consisted of all women who underwent CD that lasted >90 min (representing the 95th percentile of CD length in our cohort).

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